Mary Ellen W Kelly was born around 1875.

Mary married Henry Peter Stockton in 1900 in Barnsley, Yorkshire.

She had the following children from her marriage to Henry Peter Stockton:

- Winifred Stockton	born around 1902 at Barnsley, Yorkshire.
- Doreen Stockton	born around 1906 at Barnsley, Yorkshire.

Mary died in 1908 in Barnsley, Yorkshire.